I've been troubleshooting this issue for two days now, trying various fixes I've found online to no avail. I'm going crazy at this point so I would love some help. I'm using a Thinkpad X1 Carbon (6th gen) and dualbooting Win10 and Mint (18.3). Wifi works as intended on Win10 but neither NetworkManager nor WICD can recognize any wifi networks in Mint.

When I originally posted this I was running on the 4.15.0-20 kernel. From GRUB I launched Mint from the 4.10.0-38 kernel. The 4.10 version recognizes wireless networks and works perfectly.

I'm still unsure exactly why 4.15.0-20 wouldn't recognize the networks, I assume it has to do with iwlwifi-8265-22 not being compatible with that specific kernel. If anyone knows for sure, I would appreciate an explanation.